Definition of Mum

mute; silent

Examples of Mum in a sentence

Staying mum for the time being, the man thought it best he not discuss his plans with anyone else.  🔊

The sneaky teenager stayed mum as she tiptoed into the house past curfew.  🔊

Though they were mum, the silent protests of the group were heard loud and clear.  🔊

I promised to stay mum about my sister’s elopement but could not resist telling my parents.  🔊

During their game of hide and go seek, the children stayed mum so that their voices would not cause them to be found.  🔊

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